Article Summary

The H7 bulb is a single filament bulb. It is used on high or low beam headlight applications. It is popular with European cars. Some need speciual adapters to fit properly. 

The h4 headlight bulb is a dual filament bulb that does high and low beam in the same bulb. 

Click here for a list of our H4 LED bulbs. 

The H11 bulb is one of the most commonly used bulbs. It can be used in low beam, high beam , or fog lights on many vehicles.

The H1 bulb is a single beam bulb. It can be used in either high or low beam positions. It is used in a lot of vehicles from Japan.